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CONSOLIDATED BALANCE SHEETS CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified | Jun. 30, 2014 | Dec. 31, 2013
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CURRENT ASSETS: |  |
Trade receivables, allowances (in dollars) | $ 903 | $ 840
STOCKHOLDERS’ EQUITY: |  |
Preferred stock, shares authorized | 5,000,000 | 5,000,000
Preferred stock, shares issued | 0 | 0
Common Stock, Par or Stated Value Per Share |  |
Common stock, shares authorized | 100,000,000 | 100,000,000
Common stock, shares issued | 43,223,000 | 42,846,000
Other |  |
OTHER ASSETS: |  |
Intangibles, accumulated amortization (in dollars) | 21,021 | 18,870
Developed technology |  |
OTHER ASSETS: |  |
Intangibles, accumulated amortization (in dollars) | $ 22,862 | $ 17,602

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